# A, B, and C are 3 angles in triangle ABC then sin(A+B)=?

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(a) sinA (b)sinB (c)sinC (d)cosC (e) -sin(A+B)

(a) sinA (b)sinB (c)sinC (d)cosC (e) -sin(A+B)

##### 1 Answer

Jul 12, 2018

#### Explanation:

We know that , in

So,

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Please Carefully, see the image given below to understand the quadrant.

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